The correct question is as follows: 0.500 moles of potassium oxide is dissolved in enough water to make 2.00 L of solution. Calculate the molarity of this solution (plz help!)
Answer: The molarity of this solution is 0.25 M.
Explanation:
Molarity is the number of moles of a substance divided by volume in liter.
As it is given that there are 0.5 moles of potassium oxide in 2.00 L of water so, the molarity of this solution is calculated as follows.
Thus, we can conclude that molarity of this solution is 0.25 M.
Answer:
6.25 mL
Explanation:
1.25% of 500 mL is ...
0.0125×(500 mL) = 6.25 mL
Since 1.25% of the 500 mL of solution is bleach, that's how much you need. That amount is 6.25 mL.
Answer:
The Electron found by J.J Thompson
Explanation:
Hope this helps:)
Answer:
473 ml.
Explanation:
In gallons it’s equal to 0.125
Answer: The hydrogen ion concentration in molarity is 0.013
Explanation:
pH or pOH is the measure of acidity or alkalinity of a solution.
pOH is calculated by taking negative logarithm of hydroxide ion concentration and pH is calculated by taking negative logarithm of hydrogen ion concentration
Putting in the values:
![pOH=-\log[7.609\times 10^{-13}]](https://tex.z-dn.net/?f=pOH%3D-%5Clog%5B7.609%5Ctimes%2010%5E%7B-13%7D%5D)
Now , 
![pH=-\log [H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%20%5BH%5E%2B%5D)
![[H^+]=0.013M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D0.013M)
The hydrogen ion concentration in molarity is 0.013
